Ford is coming out with the next gen mustang as a 2014 model for the 50th anniversary. I wouldn't think GM will be much further behind.

Yea, I think you can take this to the bank. Between the new CAFE standards, the Mustang new generation coming 2014, and the Alpha platform needing more than just the Cadillac; 2015 will be the Gen6.

I hope the Gen6 is somewhat molded from the Gen2 and thus conducive to a T-type configuration. This requires a single side glass and a somewhat wrap-around back glass. Also helps the current visiblity issues and keeps the Gen5 unique.

You'd think the 2013 model will get some minor facial and/or rear changes.